Catherine A Obin , ANCC
Nurse Practitioner โข Wareham, MA
100 Rosebrook Way
Wareham, MA 025711138
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on September 26, 2005; this date does not establish years in practice.
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Published CMS data list 1,129 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 347 service units.
- 99213 โ Established patient outpatient office visit: 186 service units.
- G0439 โ Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 173 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 15 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 3,244 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Omeprazole โ 165 prescription fills, including refills.
- Amlodipine Besylate โ 148 prescription fills, including refills.
- Atorvastatin Calcium โ 137 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 84 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Wareham, MA (2024, 17 clinicians with data). Median for this group: 563. Middle half: 342 to 852.
More Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: 293. Middle half: 113 to 625.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 930 in 2020 to 1,129 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
100 Rosebrook Way
Wareham, MA 025711138
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Southcoast Physicians Group Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2002
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
297 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $96,662 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $74,700 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
6,985 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$205,741 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $805.22 across 10 records.
By nature of payment
- Food and Beverage: $755.27 across 9 records.
- Long term medical supply or device loan: $49.95 across 1 record.
Reporting-company totals (3 largest of 8)
- AstraZeneca Pharmaceuticals LP: $148.20 across 3 records.
- Eli Lilly and Company: $124.99 across 1 record.
- ARS Pharmaceuticals Operations, Inc.: $120.23 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
24 years (graduated 2002)
CMS Doctors and Clinicians data list 2002 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Catherine Obin has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Catherine Obin as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Wareham and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Wareham, MA (2024, 17 clinicians with data). Median for this group: 563. Middle half: 342 to 852.
More Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: 293. Middle half: 113 to 625.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Nurse Practitioner in Wareham, MA (2024, 17 clinicians with data). Median for this group: $39,303. Middle half: $28,395 to $79,051.
A higher Medicare-allowed amount than 90% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: $24,187. Middle half: $9,751 to $49,233.
Paid by Medicare
A higher Medicare payment amount than 85% of clinicians listed under Nurse Practitioner in Wareham, MA (2024, 17 clinicians with data). Median for this group: $29,956. Middle half: $21,683 to $59,134.
A higher Medicare payment amount than 90% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,536 clinicians with data). Median for this group: $18,312. Middle half: $7,110 to $37,062.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Nurse Practitioner in Wareham, MA (2024, 16 clinicians with data). Median for this group: 705. Middle half: 352 to 1,451.
More Part D prescriptions than 90% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,589 clinicians with data). Median for this group: 330. Middle half: 89 to 1,072.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Wareham, MA (2024, 16 clinicians with data). Median for this group: $72,263. Middle half: $9,018 to $231,975.
A higher Part D drug cost than 75% of clinicians listed under Nurse Practitioner in Massachusetts (2024, 1,589 clinicians with data). Median for this group: $25,224. Middle half: $1,758 to $161,316.
19 active clinicians are listed under Nurse Practitioner with a practice address in Wareham, MA (3,483 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Wareham
57.9% of these 19 clinicians have the CMS telehealth indicator.
89.5% of these 19 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 21% from 930 in 2020 to 1,129 in 2024.
- 2020: 930
- 2021: 1,073
- 2022: 979
- 2023: 1,066
- 2024: 1,129
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Medicare-allowed amount
Medicare-allowed amount increased 33% from $72,591 in 2020 to $96,662 in 2024.
- 2020: $72,591
- 2021: $104,167
- 2022: $97,217
- 2023: $97,829
- 2024: $96,662
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Paid by Medicare
Paid by Medicare increased 32% from $56,568 in 2020 to $74,700 in 2024.
- 2020: $56,568
- 2021: $80,642
- 2022: $75,832
- 2023: $76,574
- 2024: $74,700
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 10% from 2,955 in 2020 to 3,244 in 2024.
- 2020: 2,955
- 2021: 3,250
- 2022: 3,019
- 2023: 3,057
- 2024: 3,244
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30-day fills
30-day fills stayed about the same: 6,526 in 2020 and 6,985 in 2024.
- 2020: 6,526
- 2021: 6,978
- 2022: 6,449
- 2023: 6,737
- 2024: 6,985
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Part D drug cost
Part D drug cost increased 24% from $165,446 in 2020 to $205,741 in 2024.
- 2020: $165,446
- 2021: $195,186
- 2022: $188,684
- 2023: $203,892
- 2024: $205,741
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $125.53 in 2021 to $805.22 in 2025.
- 2021: $125.53
- 2022: $470.21
- 2023: $330.20
- 2024: $781.37
- 2025: $805.22
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $805.22.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Eli Lilly and Company |
Food and Beverage
Cash or cash equivalent
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โ | General | $124.99 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $124.99 |
| ARS Pharmaceuticals Operations, Inc. |
Food and Beverage
In-kind items and services
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NEFFY | General | $120.23 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $106.12 |
| HOLOGIC INC |
Food and Beverage
In-kind items and services
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APTIMA | General | $100.50 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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TZIELD | General | $83.82 |
| Calliditas Therapeutics US Inc. |
Food and Beverage
In-kind items and services
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TARPEYO | General | $71.41 |
| Abbott Laboratories |
Long term medical supply or device loan
In-kind items and services
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FREESTYLE INSULINX | General | $49.95 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $19.94 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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BREZTRI | General | $3.27 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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347 | 202 | $396.38 | $109.93 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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186 | 127 | $280.54 | $77.84 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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173 | 173 | $404.25 | $111.45 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
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98 | 16 | $195.78 | $53.76 |
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99439
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
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68 | 15 | $148.56 | $41.27 |
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G0008
Administration of influenza virus vaccine
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66 | 63 | $147.73 | $32.81 |
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90653
Influenza vaccine, inactivated
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57 | 57 | $208.89 | $78.95 |
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G0444
Annual depression screening, 5 to 15 minutes
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24 | 24 | $58.75 | $16.42 |
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99496
Transitional care management services for problem of high complexity
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22 | 21 | $856.64 | $241.18 |
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83036
Hemoglobin a1c level
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17 | 16 | $42.59 | $9.52 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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17 | 17 | $49.59 | $13.90 |
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92250
Photography of the retina
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15 | 12 | $39.33 | $16.86 |
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99495
Transitional care management services for problem of at least moderate complexity
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15 | 14 | $637.00 | $178.12 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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13 | 13 | $54.15 | $12.32 |
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90694
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage
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11 | 11 | $143.00 | $75.81 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Omeprazole | Omeprazole | 165 | 12,989 | $2,376.57 | 56 |
| Amlodipine Besylate | Amlodipine Besylate | 148 | 12,158 | $1,248.00 | 46 |
| Atorvastatin Calcium | Atorvastatin Calcium | 137 | 12,164 | $1,864.83 | 51 |
| Levothyroxine Sodium | Levothyroxine Sodium | 126 | 8,688 | $1,119.67 | 38 |
| Lisinopril | Lisinopril | 113 | 9,451 | $1,180.81 | 37 |
| Lorazepam | Lorazepam | 112 | 2,825 | $607.09 | 29 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 104 | 8,070 | $3,264.88 | 33 |
| Metoprolol Succinate | Metoprolol Succinate | 103 | 8,314 | $2,479.23 | 36 |
| Sertraline Hcl | Sertraline Hcl | 83 | 5,373 | $730.62 | 23 |
| Gabapentin | Gabapentin | 81 | 3,670 | $1,385.44 | 17 |
| Trazodone Hcl | Trazodone Hcl | 78 | 4,380 | $733.05 | 23 |
| Metformin Hcl | Metformin Hcl | 76 | 6,136 | $708.46 | 24 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 65 | 1,903 | $1,720.15 | 26 |
| Losartan Potassium | Losartan Potassium | 63 | 4,741 | $554.51 | 19 |
| Prednisone | Prednisone | 58 | 774 | $159.37 | 43 |
| Tramadol Hcl | Tramadol Hcl | 57 | 1,205 | $322.08 | 14 |
| Fluticasone Propionate | Fluticasone Propionate | 52 | 3,165 | $864.10 | 29 |
| Pantoprazole Sodium | Pantoprazole Sodium | 51 | 4,410 | $1,437.06 | 14 |
| Duloxetine Hcl | Duloxetine Hcl | 50 | 3,660 | $1,754.15 | 17 |
| Metformin Hcl Er | Metformin Hcl | 46 | 2,990 | $434.25 | 13 |
| Hydrochlorothiazide | Hydrochlorothiazide | 45 | 3,950 | $196.30 | 17 |
| Mirtazapine | Mirtazapine | 40 | 2,613 | $646.14 | โ |
| Buspirone Hcl | Buspirone Hcl | 39 | 2,600 | $831.34 | 13 |
| Metoprolol Tartrate | Metoprolol Tartrate | 38 | 2,392 | $167.19 | โ |
| Famotidine | Famotidine | 38 | 3,130 | $546.17 | 17 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-04-23NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20040528000784
MA
9436130945
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Southcoast Physicians Group Inc
43 High St, Wareham, MA 025712097
Phone: 5089735919
Southcoast Physicians Group Inc
208 Mill Rd, Fairhaven, MA 027195208
Phone: 5087583781
Southcoast Physicians Group Inc
534 Prospect St, Fall River, MA 027205281
Phone: 5089737766
Southcoast Physicians Group Inc
206 Mill Rd, Fairhaven, MA 027195208
Phone: 5089733000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Nurse Practitioner
Family Nurse Practitioner (Certified)
Internal Medicine - Cardiovascular Disease
Doctor of Osteopathic Medicine (D.O.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 100 ROSEBROOK WAY, WAREHAM, MA 025711138 (Tel: 5082734950)
Registered at 200 MILL RD STE 180, FAIRHAVEN, MA 027195255 (Tel: 5089732000)
NPI status registered as active in NPPES database
Registered at 340 WOOD RD, SUITE 203, BRAINTREE, MA 021842401 (Tel: 7818491111)
Registered at 340 WOOD RD, SUITE 203, BRAINTREE, MA 021842401 (Tel: 7818491111)
Recorded as CATHERINE OBIN, ANCC
Nurse Practitioner (license number reported to NPPES: MA 494841)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Wareham
- Melissa Gaffney, AGACNP-BC
- Elise Arsenault, FNP
- Jennifer Porter
- Samantha Roy, FNP
- Jody Reeves, ANP-BC
- Erin Murray, NP
Mailing Address
200 Mill Rd Ste 180
Fairhaven, MA 027195255
Phone: 5089732000